Pipe-wrench.



No. 654,!76. Patented July 24,1900.

.0. H. MCNELLY, J. F.l JANNEY H. MGNELLY.

@gawd @EMM j Janine ipr) PIPE WRENCH.

um. 1s,

- (No Model.)

l nir-Te STATES PATENT Trice..

OREN II. MCNELLY, JOHN F. JANNEY, AND HGrI-I4 MCNELLY, OF RICHLAND CENTRE, WISCONSIN.

PIPE-WRENCH.

SPECIFICATION forming part Of Letters :Patent NO. 654,176, dated Illy 24, 1900.

Application iiled March 15, 1900. Serial No. 8|769. (No model.)

T all whom, it may concern:

Be it known that we, OREN H. MONELLY, JOHN F. J ANNEY, and HUGH MCNELLY, citizens of the United States, residing at Richland Centre, in the county of Richland and State of Wisconsin, have invented a new and useful Pipe-l/Vrench, of which the following is a specification.

This invention relates to pipe-wrenches,

1o and has for its object to provide an improved device of this characterto iirmly grip a pipe by a single action of the handle, and which may be readily released from the pipe bya reverse movement. It is furthermore designed to provide an adjustable device, so as to accommodate a single wrench to pipes of diiferent diameters,and also to dispense with all springs and screw-threaded adjustments which wear and also provide an imperfect adjustment of 2o the jaws of the wrench.

With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the z5 accompanying drawings, and particularly pointed out in the appended claim, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claim without departing from the spirit or sacricing any of the advantages of the invention.

In the drawings, Figure 1 is a perspective view of a pipe-wrench constructed in accordance with the present invention. Fig. 2 is a central longitudinal sectional view thereof.

Corresponding parts in both figures of the drawings are designated by like characters of reference. V

Referring to the accompanying drawings,

4o 1 designates the handle of the wrench, which is provided at its forward end with an intermediate longitudinal bearing-ear 2. Pivoted or hinged to this ear isa jaw 3, which is hookshaped, and the inner face of the bill portion thereof is made angular and serrated or toothed, as indicated at t. The rear or inner end of the jaw is provided with a longitudiably mounted upon the other jaw.

nal bifurcation to form the opposite bearingears 5, which loosely embrace the bearing-ear upon the handle, and all of these ears are piv- 5o otally or hingedly connected by means of a suitable pivot-pin 6. Intermediate of the opposite ends of the shank portion of the jaw there is provided a longitudinal slot 7 for the reception of the shank of the other jaw. The other jaw 8 is segmental in form, having its rounded or conveXed face serrated or toothed and arranged for coperation with the inner face of the jaw 3. This jaw 8 is located within the slot in the jaw 3 and is provided with a 6o longitudinal series of perfor-ations 9 for the reception of a removable pivot-piu 10, which passes through the opposite sides of the jaw 3, so that the segmental jaw may be adjust- Extending rearwardly from this jaw 8 is an outwardly-bowed shank 11, which is provided at its rear end with an inwardly-directed arm 12 to slide within a longitudinal slot 13, formed in the handle and extending entirely through 7o the latter in the plane of the jaws. Intersecting this slot is another longitudinal slot 14, that is disposed in a plane at substantially right angles to that of the other slot 13 and is designed to slidably receive the opposite ends of a pin 15, which projects at lopposite sides of the arm 12. I

In the operation of the wrench the jaws thereof are hooked abouta pipe, as indicated in Fig. I, the jaws being loosely or pivotally 8o connected to facilitate this engagement, after which the handle is drawn in the direction of the free ends of the jaws, thereby forcing the pivotal connection between the jaw 3 and handle inwardly toward the shank l1, which is bowed to accommodate this movement It will be apparent that the jaws of the wrench may be readily released from the pipe by a reverse movement of the handle.

What we claim is- 9o Awrench,comprisingahandle,havingapair of longitudinal intersecting slots, a hooked jaw pivotally or hingedly connected to one end of the handle, and provided with a longitudinal slot, and a second jaw pivoted within the slot of the first-mentioned jaw, and also provided with a rearwardly-extending bowed shank, having an inwardly-directed arm at its 'rear end and slidably received within one of the slots in the handle, said arm having opposite lateral projections siidably confined within the other slot of the handle.

In testimony that we claim the foregoing as our own we have hereto aixed our sign atures Io in the presence of two witnesses.

OREN H. MCNELLY. JOHN F. JANNEY. HUGH MCNELLY.

Witnesses:

W. S. MGCORKLE, v LEMUEL A. KEY. 

